How many valence electrons does iron have?

Question

Jules Bruno · Accepted Answer

Iron is a transition metal so we have to write it's electron configuration to determine the number of valence electrons. We'll use the noble gas notation. [readmore]The noble gas notation is basically using the symbol of the noble gas that comes before the element of focus and uses it as the first part of the electron configuration. Then we follow it with the electron configuration for the electrons in excess. We can know that by using the periodic table below and locating iron (Fe) and the noble gas before it.Recall:s orbital → can hold a maximum of 2 electronsp orbitals → can hold maximum of 6 electronsd orbitals → can hold maximum of 10 electronsf orbitals → can hold maximum of 14 electronsTake note that after Ar, it passes through the 4s (4 period, s block, full ) and 3d (6 steps, 6 electrons)● Electronic configuration: [Ar]4s23d6 → 2+6 valence e-→ 8 valence e-

Problem: How many valence electrons does iron have?

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Problem: How many valence electrons does iron have?

FREE Expert Solution

Problem Details

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